Gas-burner.



J. B. ANDERSON.

GAS BURNER.

APPLICATION FILED APR.7,191&

1 ,07 6,857. Patented Oct. 28, 1913.

4 SHEETSSHEET 1.

WITNESSES INVENTOR I QAMM,

J. B. ANDERSON.

GAS BURNER.

APPLICATION FILED APRJ, 1918.

1,076,857. Patented Oct. 28, 1913.

4 SHEETS-SHEET 2,

INVENTOR ym 75. QMM

J.B.ANDERSON.

GAS BURNER.

APPLICATION FILED APR.7,191&

1,076,857. Patented Oct. 28, 1913.

'% SHEETSSHBET 3.

INVENTOR JGM J. B. ANDERSON.

GAS BURNER.

APPLICATION FILED APR. 7, 1913.

1,076,857. Patented 0@1;,28,1913.

4 SHEETS-SHEET 4.

wrmzssss lNV ENTOR bemaintained.

UNITED snares PATENT oFrrcE.

JAMES 'B. ANDIiRSON, 0F fiHAIzER; TOWNSHIP; ALLEGHENY COUNTY, lPENNSYLVANIA.

- GAS-BURNER.

-- Specification oi Letters Patent.

Patented Oct. 28, 1913.

.hpplication filed April 7, 1913. Serial No. 759,334.

. To all whom it may concern:

- Be it known that: L-JAMES B. ANDERSON, a citizen of the United-States, and residing in the township of Shaler,-in the county of -lllegheny and State of Pennsylvania-have invented or discovered new and useful Improvements in Gas-Burners, of which the following isa specification.

My invention consists in a new-and improved gas burner foruse in connection with .boiler and other furnaces.

The objects in view arethe reduction of the gas consumption and the increase of the heating. effect. I-accomplish these objects by the novel construction and arrangement of parts shown.

Generally speaking theburner consists of a gas chamber anda mixing chamber :in fixed relation and a cylindrical member slidably mounted between the same,- ,the as chamber being provided with ports which are engaged by needles mounted-on thesliding memb'er. .The method shown for introducing the air into the mixing chamber is novel and produces. a whirling flame of intense. heat. the is introduced; axially thereof, an annular port admitting the air into the-mixing chamber. The valve controllingthe admission of air into the air-chamber 1s. adj ustably coupled to the sliding member..so thatany desired ratio between the, gas and air. may

In ;the. accompanying drawings, Figure '1 is a side elevationof my burner; Fig. 2 is a longitudinalv sectionof the same, F ig. 3. is

an enlarged end viewof theimovable needle .member; Fig. lis. an enlarged end view of the gas chamber member, Fig.5 is-an enlarged perspective of themodified form 01 air-regulating valve used where the.air. is supplied by. a high pressuredine; Rig; 6 is a longitudinal sectional view ofthat. form of my: burner which utilizes the modified. airrcgulating valve shownin Fig. 5.

The following is a dctailcddescription of 'thedrawings:

The main elements of the burner'are the gas chamber member A; the..needle-valve carrying member B, slidable in relationto ..member A, and the mixingchamber member C, the valve-carrying..member B bridging the space between the gas-chamber member 'A and the mixing-chamber.member C, one

end of said needle-valve carrying member B being slidable within a boss 3 carried by said.

The air chamber is annular and is slidably seated in the cylindrical boss 3 of 'mixer C, a splitspring packing ring 4 being seated -in a circumferential groove in the needle-valve carrying member B to make a snug fit with the wall of boss 3. The outer periphery of said boss 3 is tapered.

5-is a diametric spider inthe bore of .needle-valve carrying member B upon which .are mounted the needles 6 which engage the ports 2, thus forming a multiple needle valveregulated by the longitudinal movement of needle-valve carrying member B.

The gas-chamber member A and needlevalve carrying Inember- B are. supported from member C by means of the parallel rods 7 rigidly secured to said mining-chamber member G and passing through pierced cars 8 integral .with needle-valve carrying membcrB and similar cars 9 on gas-chamber mcmbcr'A. Nec lle-valve carrying member B is free to slide on said rods 7 but set screws lOare provided to lock gas-chamber membenAin any desired position. movement offnecdle-valve carrying member .15 maybe limited-by the collar 11 lochcd by means of set screw 12 in any desired ppsition on rod 7. i

is i an. annular air-chamber in mixer .mem-ber C surrounding'thc boss 3 and communicating with .the mixing chamber ll by 7 means of the annular port iabdwm said boss and the wall of said mixer. As the outer wall of saidboss and the wall of said mixing chamber-are tapered said port is inwardly -inclinc(l,.thus intensifying the-whirling ac- .t'ion ofthe entering. air. 16 is-the tapered nozzle.

The airchambcr 13 is provided with a radial inlet port 17 which may be closed or its capacity regulated by a valve 18. The valve 18.xnayflbe conveniently mounted on a. rock shaft 19.journaled in the walls of port 17. 20 is a cap piece secured to the top of port 17- and provided with a cylindrical throat 21 which may be connected to the discharge of an air-fan.

The outward is a lever mounted on the protruding end of rock shaft 13) and sccnrable in any position thereon by set screw 23. Said lever is. provided with a plurality of holes :24 into anyone of which may be introduced the.

I guide member 31 and haNing its position adjusted by screw 33 is a bifurcated backet extending from mixer C, and 31 is a rock shaft journaled in the arms of said bracket. One end of said shaft is seated in a hole in the base of guide member 31 which may be secured at any desired angle. on said shaft by set screw 35.

3G is an arm mounted on said shaft 34 and securable at any angle thereto by set screw 37. 38 1s a longitudinal slot in said arms 36. 39 represents a pair of parallel pierced cars integral with necdlevalve carrying member I and 40 is a pin extending through said ears and the slot 38 in arms 36.

it is evident that the shutter 18 and needle-valve carrying member Banove in unison so that the ratio or proportion between the gas and air supplied to the burner is constant. Said ratio may be varied by means of the numerous adjustments of which the connecting mechanism is capable. Thus the position of the arms 22 may be varied on shaft 19; The pin 25 may engage any of the holes 24- in the arms 22, thus altering the length of the arc of swing of shutter 18. The. position of collar 26 on rod 27 may be altered, or the position of nut 30 on screw 32, or guide member 31 or arm 36 on shaft 3t may be altered.

To enable. the air valve to be disconnected from the needle valve the hooked end of rod 97 may be thrown off from pin29. In such case the air supply would be. limited to that. admitted bet-ween gas-chamber member A and needle-valve carrying member B. It is erident that the engagement of the tapered end of QnF-tlltllnl')tl. member Aand the flared end of needle-valve carrying member B is such tlwtithe capacity of the annular port thus f rmed varied with the altered position of the needle-valve carrying member B in adjusting the needles in the air ports. In other words there is a constant ratio between the. gas admitted through ports 2 and the air admitted between gas-chamber member A and needle-valve carrying member 13. Thus a proper mixture to sustain combustion is always maintained when the shutter 18 is closed as where it desired to keep the burner lighted to maintain a minimum heat in the furnace.

In the ordinary operation of the burner, the rod 527 engaging the pin'29, a preliminary mixing of gas and air takes place in the needle-valve carrying member B, which mixture enters the mlxing chamber 14 through the boss 8. The air forced into the air-chamber 13 through the radial port 17 rushes around said annular chamber 13 and escapes through the port 15 in to the mixing chamber 14 in a spiral whirl. The result is a whirling volume of mixed air and gas which forms a whirling flame of great force and intensity at the nozzle. I find this results in a great magnified heat intensity with the use of a much smaller volume of gas than is possible in other forms of burners.

Referring, now, to the form of device shown in Figs. 5 and 6, where the air is supplied to port 17 under high pressure, as from a pump line, I prefer t provide a more accurate valve than shutter 18. Thus I place 'in port 17 a fixed grating 41 and a cooperating sliding grating 42 pivotally connected by link 4-3 to an arm 44 on rock Shaft 19. I am tints able to obtain a very closeadjustment of the amount of air entering the port 17.

IVhat I desire to claim is-:-

1. In a gas-burner, a gas-chamber member having ports in the end thereof, a mixing-chamher member spaced therefrom and having a tubular boss projecting interiorly thereof. and a tubular valve-carrying member bridging the space betwecn said gaschamber member and said tnixingchamber member, one end of said valve-carrying member being slidably mounted '11 said boss.

2. In a gas-burner, a gas-chamber member having ports in the end thereof, a mix ing-chamber member spaced therefrom and having a tubular boss projecting interiorly thereof, and a tubular valve-carrying member bridging the space between said gas chamber member and said mixingchamber member, one end of said valve-carrying member being slidably mounted in said 'boss, and said valve-carrying member having a, flaring end adjacent said ported end of said gas-chamber member.

3. In a gas-burner, a gas-chamber member having a taperagl end provided with ports, a mixing-chamber member spaced therefrom and having a tubular boss projecting interiorly thereof, and a tubular valve-carrying member bridging the space between said gas-chamber member and said mixing-chamber member, one end of said valve-carrying member being slidably mounted in said boss and said valve-carrying member having a flaring end adjacent said flaring end of: said gaschamber member.

4-.. In a gas-burner, a gas-chamber memher having ports-in the end thereof, a. mixing-chamber member spaced therefrom and having a tubular boss projecting interiorly thereof, and a tubular valve-carrying membcr bridging thespace between said gaschamber member and said mixing-chamber member, one end of said valve-carrying member being slidably mounted in said boss, said mixing-chamber member being provided with an annular air-chamber surrounding said boss.

' 5. In a gasburner, a gas-chamber member having ports in the end thereof, a mixing-chambor member spaced therefrom and having a tubular boss projecting interiorly thereof, and a tubular valve-carrying member bridging the space between said gaschamber member, and said mixing-chamber member, one end of said valve-carrying member being slidably mounted in said boss, said mixing-chamber member being provided with an annular air-chamber surrounding said boss, said air-chamber having a radial inlet-port. v

6. In a, gas-burner, agas-chamber 'memher having ports in theend thereof, a mixing-chamber member spaced therefrom and having a tubular boss projecting interiorly thereof, and a tubular valve-carrying memchainberniember and said mixing-chamber member, one end of said valve-carrying member being slidably mounted in said boss, said mixing-chamber member being provided with an annular air-chamber surrounding said boss, said air-chamber having a radial inlet-port and a restricted outlet.

7. In a gas-burner, a gas-chamber member having ports in the end thereof, a mixing-chamber member spaced therefrom and having a tubular boss projecting interiorly ber bridging the space between said gasthereof, a tubular valve-carrying member bridging the space between said gas-chamber member and said mixing-chamber inemher, one end of said valve-carrying member 40 being slidably mounted in said boss, said mixing-chamber member being provided with an annular airchamber surrounding said boss, said air-chamber having a radial inlet port, a valve governing the passage of air through said inlet-port, and mechanism for simultaneously reciprocating said valveearrying member and moving-sa-idinletport valve.

8. In a gas-burner, a gas-chan1ber member having ports in the end thereof, a mixing-chamber member :having ,an annular air'chamber. communieatin with the airchamber of said mixing-c amber member through an annular port, said annular airchamber having an inlet'port, a tubular valve-carrying. member disposed between said gas-chamber member and said mixing-f chamber member and reciprocable to control passage through .said gas-chamber ports,-superposed stationary and movable gratings in said air-chamber inlet-port, and mechanism for simultaneously reciprocating said valve-carrying member and actuatin said movable grating, to maintain-a desireratio between the air and gas.

Signed at Pittsburgh, Penna, this 1st day of 'April', .1913. i v

JAMES B. ANDERSON.

Witnesses:

SYLVESTER J. S ms, .EDWARD A. LAWRENCE. 

